ZOOM MS70 (annoying) high pitch noise

[SynthWizard]

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ZOOM MS70 (annoying) high pitch noise

so I finally got the ms70 multistomp fx pedal. nice lil pedal so far.

but last night I notice a high pitch sound coming from this thingy, when its in idle. I tried changing the cables, the chain fx, the options within the pedal, etc.

but nada. even the firmware is updated!

guys, does anybody know wtf is up? or is it something usual?

submitted by /u/AMOKEE
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